Alright, let's work through 87118409 times 73677660 step by step
87118409 × 73677660 = 73677660 × (87118409)
+ 73677660 × 9 giving us 663098940
+ 73677660 × 00 what gives us 0
+ 73677660 × 400 giving us 29471064000
+ 73677660 × 8000 what gives us 589421280000
+ 73677660 × 10000 what gives us 736776600000
+ 73677660 × 100000 that results in 7367766000000
+ 73677660 × 7000000 giving us 515743620000000
+ 73677660 × 80000000 which equals 5894212800000000

= 6418680518042940
